Results 91 to 100 of about 3,742 (297)

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

Advanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal, Manuel Romero, Lennart van den Hengel, Nathan Rodkey, Kassio P. S. Zanoni, Gabriel Lozano, Cristina Roldán‐Carmona, Michele Sessolo, Hernán Míguez, Henk J. Bolink   +9 more
wiley   +1 more source

Offset quantum-well method for tunable distributed Bragg reflector lasers and electro-absorption modulated distributed feedback lasers

, 2005
A two-section offset quantum-well structure tunable laser with a tuning range of 7 nm was fabricated using offset quantum-well inethod. The distributed Bragg reflector （DBR） was realized just by selectively wet etching the multiquantum-well （MQW） layer ...
Zhu Hongliang, Zhao Lingjuan, Kan Qiang, Wang Yu, Zhou Fan, Wang Lufeng, Ding Ying, Wang Baojun   +7 more
core  

Regenerated distributed Bragg reflector fiber lasers for high-temperature operation [PDF]

, 2013
This Letter presents distributed Bragg reflector (DBR) fiber lasers for high-temperature operation at 750°C. Thermally regenerated fiber gratings were used as the feedback elements to construct an erbium-doped DBR fiber laser.
Li, M, Chen, Rongzhang, Chnning, J, Chen, T, Chen, R, Chen, Kevin P., Yan, A, Chen, KP, Cook, K, Wang, Qingqing, Wang, Q, Yan, Aidong, Li, Mingshan, Canning, John, Chen, Tong, Cook, Kevin   +15 more
core   +1 more source

Silicon Photonics Extended-Distributed Bragg Reflector (E-DBR) Lasers for FMCW LiDAR Applications

, 2021
Silicon Photonics foundry based Extended-Distributed Bragg Reflector (E-DBR) lasers for automotive FMCW LiDAR systems are described, demonstrating record Lorentzian linewidths
D. Huang, M. Tran, C. Xiang, P. A. Morton, M. Morton, Guo, J., J. Peters, Morton, M., Huang, D., Tran, M., J. E. Bowers, Bowers, J. E., J. Guo, Xiang, C., Morton, P. A., Peters, J.   +15 more
core   +1 more source

Polyimide‐Linked Hexaazatriphenylene‐Based Porous Organic Polymer with Multiple Redox‐Active Sites as a High‐Capacity Organic Cathode for Lithium‐Ion Batteries

Advanced Materials, EarlyView.
A high‐capacity polyimide‐linked porous organic polymer (HAT‐PTO) incorporating numerous redox‐active centers is synthesized via a hydrothermal reaction, delivering a high theoretical capacity of 484 mAh g−1. In situ hybridization with carboxyl‐functionalized multiwalled carbon nanotubes enhances conductivity and stability, achieving 397 mAh g−1 at C ...
Arindam Mal, Jonathan Caroni, Asia Patriarchi, Olivera Luzanin, Rafael Ramos, Jan Bitenc, Manuel Melle‐Franco, Manuel Souto   +7 more
wiley   +1 more source

Tunable Distributed Bragg Reflector Laser Fabricated by Bundle Integrated Guide

, 2003
The tunable BIG-RW distributed Bragge reflector lasers with two different coupling coefficient gratings are proposed and fabricated.The threshold current of the laser is 38mA and the output power is more than 8mW.The tunable range of tthe laser is 3.2nm
Zhu Hongliang, Zhao Lingjuan, Lu Yu, Zhou Fan, Wang Wei, Zhang Jingyun, Wang Baojun   +6 more
core  

Preparation and novel photoluminescence properties of the self-supporting nanoporous InP thin films

Scientific Reports, 2020
Self-supporting nanoporous InP membranes are prepared by electrochemical etching, and are then first transferred to highly reflective (> 96%) mesoporous GaN (MP-GaN) distributed Bragg reflector (DBR) or quartz substrate. By the modulation of bandgap, the
Dezhong Cao, Bo Wang, Dingze Lu, Xiaowei Zhou, Xiaohua Ma   +4 more
doaj   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Wavelength Tuning in Two-Section Distributed Bragg Reflector Laser by Selective Intermixing of InGaAp-InGaAsP Quantum Well Structure

, 2003
The two-section tunable ridge waveguide distributed Bragg reflector (DBR) laser fabricated by the selective intermixing of an InGaAsP-InGaAsP quantum well structure is presented. The threshold current of the laser is 51mA.
Zhu Hongliang, Zhao Lingjuan, Zhang Jingyuan, Lu Yu, Zhang Jing, Zhou Fan, Wang Wei, Wang Baojun   +7 more
core  

Distributed Etched Diffraction Grating Demultiplexer With Flat-Top Insertion Loss Envelope

IEEE Photonics Journal, 2011
It is numerically shown that incorporation of a distributed Bragg reflector at the facets of an etched diffraction grating (EDG) can be used to tailor the output spectral response of the device.
Amir Jafari, Andrew Kirk
doaj   +1 more source